Articles | Volume 23, issue 4
https://doi.org/10.5194/acp-23-2421-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-23-2421-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
22 Feb 2023
Research article |
| 22 Feb 2023
| 22 Feb 2023
The impacts of dust aerosol and convective available potential energy on precipitation vertical structure in southeastern China as seen from multisource observations
Hongxia Zhu
School of Earth and Space Science, Comparative Planetary Excellence
Innovation Center, University of Science and Technology of China, Hefei
230026, China
Rui Li
CORRESPONDING AUTHOR
School of Earth and Space Science, Comparative Planetary Excellence
Innovation Center, University of Science and Technology of China, Hefei
230026, China
State Key Laboratory of Fire Science, University of Science and
Technology of China, Hefei 230026, China
Institut de recherche sur les forêts, Université du Québec en Abitibi-Témiscamingue (UQAT), Rouyn-Noranda, J9X 5E4, Canada
Shuping Yang
School of Earth and Space Science, Comparative Planetary Excellence
Innovation Center, University of Science and Technology of China, Hefei
230026, China
Chun Zhao
School of Earth and Space Science, Comparative Planetary Excellence
Innovation Center, University of Science and Technology of China, Hefei
230026, China
Zhe Jiang
School of Earth and Space Science, Comparative Planetary Excellence
Innovation Center, University of Science and Technology of China, Hefei
230026, China
Chen Huang
School of Earth and Space Science, Comparative Planetary Excellence
Innovation Center, University of Science and Technology of China, Hefei
230026, China
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Biogenic volatile organic compounds (BVOCs) can influence atmospheric chemistry and secondary pollutant formation. This study examines the performance of different versions of the Model of Emissions of Gases and Aerosols from Nature (MEGAN) in modeling BVOCs and ozone and their sensitivities to vegetation distributions over eastern China. The results suggest more accurate vegetation distribution and measurements of BVOC emission fluxes are needed to reduce the uncertainties.
Zhuang Wang, Cheng Liu, Zhouqing Xie, Qihou Hu, Meinrat O. Andreae, Yunsheng Dong, Chun Zhao, Ting Liu, Yizhi Zhu, Haoran Liu, Chengzhi Xing, Wei Tan, Xiangguang Ji, Jinan Lin, and Jianguo Liu
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Significant stratification of aerosols was observed in North China. Polluted dust dominated above the PBL, and anthropogenic aerosols prevailed within the PBL, which is mainly driven by meteorological conditions. The key role of the elevated dust is to alter atmospheric thermodynamics and stability, causing the suppression of turbulence exchange and a decrease in PBL height, especially during the dissipation stage, thereby inhibiting dissipation of persistent heavy surface haze pollution.
Stefan Rahimi, Xiaohong Liu, Chun Zhao, Zheng Lu, and Zachary J. Lebo
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Dark particles emitted to the atmosphere can absorb sunlight and heat the air. As these particles settle, they may darken the surface, especially over snow-covered regions like the Rocky Mountains. This darkening of the surface may lead to changes in snowpack, affecting the local meteorology and hydrology. We seek to evaluate whether these light-absorbing particles more prominently affect this region through their atmospheric presence or their on-snow presence.
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Short summary
The impacts of atmospheric dust aerosols and cloud dynamic conditions on precipitation vertical development in southeastern China were studied using multiple satellite observations. It was found that the precipitating drops under dusty conditions grow faster in the middle layer but slower in the upper and lower layers compared with their pristine counterparts. Quantitative estimation of the sensitivity of the precipitation top temperature to the dust aerosol optical depth is also provided.
The impacts of atmospheric dust aerosols and cloud dynamic conditions on precipitation vertical...
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